The Swingline Stack-and-Shred 500X is ideal for shared use by up to 10 persons. Its autofeed chamber even accepts legal size paper. The sturdy design features rolling casters for mobility. The quiet operation makes it perfect for both open and shared spaces. Its 4-digit programmable PIN lock means you are free to walk away with confidence that your information is secure while being shredded. The 500X features patent pending Hands Free Auto+ technology. The 500X features cross cut shredding/security level 3, automatic jam clearance, self cleaning and self oiling cutters, power saving features and it shreds CDs and credit cards.